Home / 78,709,792.68-108,654,343.52-50,846,088.87

Finding the Fourth Proportional to 78,709,792.68, 108,654,343.52 and 50,846,088.87

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Solution

The fourth proportional to 78,709,792.68, 108,654,343.52 and 50,846,088.87 is: 70,190,102.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,709,792.68 : 108,654,343.52 = 50,846,088.87 : x
  2. Step 2: Convert to fraction form
    78,709,792.68/108,654,343.52 = 50,846,088.87/x
  3. Step 3: Cross multiply
    78,709,792.68x = 108,654,343.52 × 50,846,088.87
  4. Step 4: Simplify right side
    78,709,792.68x = 5,524,648,406,729,428
  5. Step 5: Solve for x
    x = 5,524,648,406,729,428/78,709,792.68
  6. Step 6: Final answer
    x = 70,190,102.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.